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Classifying Rocks
Inside Earth: Chapter Five, Section One
Term | Definition |
---|---|
texture | the look and feel of a rock's surface, determined by the size, shape, and pattern of a rock's grains. |
grain | a particle of mineral or other rock that gives rock its texture. |
igneous rock | a type of rock that forms from the cooling of molten rock at or below the surface. |
sedimentary rock | a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together. |
metamorphic rock | a type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions. |